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<a href="#define-members">Defines</a> &#124;
<a href="#func-members">Functions</a>  </div>
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<div class="title">nrf51/Include/twi_master.h File Reference</div>  </div>
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<p>Software controlled TWI Master driver.  
<a href="#details">More...</a></p>
<div class="textblock"><code>#include &lt;stdbool.h&gt;</code><br/>
<code>#include &lt;stdint.h&gt;</code><br/>
</div>
<p><a href="twi__master_8h_source.html">Go to the source code of this file.</a></p>
<table class="memberdecls">
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Defines</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ga67c0f91739433360f513b097acf11946"></a><!-- doxytag: member="twi_master.h::TWI_READ_BIT" ref="ga67c0f91739433360f513b097acf11946" args="" -->
#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lib__driver__twi__master.html#ga67c0f91739433360f513b097acf11946">TWI_READ_BIT</a>&#160;&#160;&#160;(0x01)</td></tr>
<tr><td class="mdescLeft">&#160;</td><td class="mdescRight">If this bit is set in the address field, transfer direction is from slave to master. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ga13a824cf1c6a37f2ddea21c962128a3e"></a><!-- doxytag: member="twi_master.h::TWI_ISSUE_STOP" ref="ga13a824cf1c6a37f2ddea21c962128a3e" args="" -->
#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lib__driver__twi__master.html#ga13a824cf1c6a37f2ddea21c962128a3e">TWI_ISSUE_STOP</a>&#160;&#160;&#160;((bool)true)</td></tr>
<tr><td class="mdescLeft">&#160;</td><td class="mdescRight">Parameter for <a class="el" href="group__lib__driver__twi__master.html#ga36e8039d4cbb4f66c0cf0cf1e3a72445">twi_master_transfer</a>. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="gaedaa985feb5cea808d8811bd7ceeb318"></a><!-- doxytag: member="twi_master.h::TWI_DONT_ISSUE_STOP" ref="gaedaa985feb5cea808d8811bd7ceeb318" args="" -->
#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lib__driver__twi__master.html#gaedaa985feb5cea808d8811bd7ceeb318">TWI_DONT_ISSUE_STOP</a>&#160;&#160;&#160;((bool)false)</td></tr>
<tr><td class="mdescLeft">&#160;</td><td class="mdescRight">Parameter for <a class="el" href="group__lib__driver__twi__master.html#ga36e8039d4cbb4f66c0cf0cf1e3a72445">twi_master_transfer</a>. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lib__driver__twi__master.html#ga7635564961ef4b40ebe54c566b25dc75">TWI_SCL_HIGH</a>()&#160;&#160;&#160;do { NRF_GPIO-&gt;OUTSET = (1UL &lt;&lt; TWI_MASTER_CONFIG_CLOCK_PIN_NUMBER); } while(0)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lib__driver__twi__master.html#gafef260a0ebd7d5669cd2731d2c20f55d">TWI_SCL_LOW</a>()&#160;&#160;&#160;do { NRF_GPIO-&gt;OUTCLR = (1UL &lt;&lt; TWI_MASTER_CONFIG_CLOCK_PIN_NUMBER); } while(0)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lib__driver__twi__master.html#ga112251118224f5623c20423efce89ae8">TWI_SDA_HIGH</a>()&#160;&#160;&#160;do { NRF_GPIO-&gt;OUTSET = (1UL &lt;&lt; TWI_MASTER_CONFIG_DATA_PIN_NUMBER);  } while(0)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lib__driver__twi__master.html#ga6b884c7770898bf063884f3f1893d492">TWI_SDA_LOW</a>()&#160;&#160;&#160;do { NRF_GPIO-&gt;OUTCLR = (1UL &lt;&lt; TWI_MASTER_CONFIG_DATA_PIN_NUMBER);  } while(0)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lib__driver__twi__master.html#ga63ae25f476902e9df0c31b057e2bb527">TWI_SDA_INPUT</a>()&#160;&#160;&#160;do { NRF_GPIO-&gt;DIRCLR = (1UL &lt;&lt; TWI_MASTER_CONFIG_DATA_PIN_NUMBER);  } while(0)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lib__driver__twi__master.html#gaa6c311f207bff59456fb22648965c53b">TWI_SDA_OUTPUT</a>()&#160;&#160;&#160;do { NRF_GPIO-&gt;DIRSET = (1UL &lt;&lt; TWI_MASTER_CONFIG_DATA_PIN_NUMBER);  } while(0)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lib__driver__twi__master.html#gaa73e62b201f371e4d2e543f0ba2bb4cb">TWI_SCL_OUTPUT</a>()&#160;&#160;&#160;do { NRF_GPIO-&gt;DIRSET = (1UL &lt;&lt; TWI_MASTER_CONFIG_CLOCK_PIN_NUMBER); } while(0)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lib__driver__twi__master.html#ga0a7e559c3bceb5b50ff3e51cabb21f73">TWI_SDA_READ</a>()&#160;&#160;&#160;((NRF_GPIO-&gt;IN &gt;&gt; TWI_MASTER_CONFIG_DATA_PIN_NUMBER) &amp; 0x1UL)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lib__driver__twi__master.html#ga45cf9fc8c9487711c3b8457b8e1116b2">TWI_SCL_READ</a>()&#160;&#160;&#160;((NRF_GPIO-&gt;IN &gt;&gt; TWI_MASTER_CONFIG_CLOCK_PIN_NUMBER) &amp; 0x1UL)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lib__driver__twi__master.html#ga0bdffa7178084c5e1b2e11d3a95c5e85">TWI_DELAY</a>()&#160;&#160;&#160;nrf_delay_us(4)</td></tr>
<tr><td colspan="2"><h2><a name="func-members"></a>
Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lib__driver__twi__master.html#ga148f1dd10bc0248c6c6c5336ce07a540">twi_master_init</a> (void)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lib__driver__twi__master.html#ga36e8039d4cbb4f66c0cf0cf1e3a72445">twi_master_transfer</a> (uint8_t address, uint8_t *data, uint8_t data_length, bool issue_stop_condition)</td></tr>
</table>
<hr/><a name="details" id="details"></a><h2>Detailed Description</h2>
<div class="textblock"><p>Software controlled TWI Master driver. </p>

<p>Definition in file <a class="el" href="twi__master_8h_source.html">twi_master.h</a>.</p>
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